平均 へいきん結婚 けっこん年齢 ねんれいでしょう
heikinkekkonnenreideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 平均結婚年齢

1. Average marriage age; Probably the average marriage age

Polite
Presumptive
Conjecture